李露



【摘要】 目的:分析血清淀粉樣蛋白A(serum amyloid A,SAA)、中性粒细胞CD4(neutrophil CD4,nCD4)对白血病合并细菌感染的诊断价值。方法:选取2018年7月-2020年7月于本院诊治的47例白血病合并细菌感染患者(感染组)与47例白血病未合并感染患者(对照组)作为研究对象,检测两组血清SAA、C反应蛋白(C-reactive protein,CRP)、降钙素原(procalcitonin,PCT)与nCD4指数;分析各指标与白血病合并细菌感染的相关性;分析SAA、nCD4指数及两者联合对白血病合并细菌感染的诊断价值。结果:感染组SAA、CRP、PCT均高于对照组(P<0.05)。感染组的nCD4指数为(176.32±2.58)高于对照组的(51.58±3.19)(P<0.05)。白血病合并细菌感染与SAA、CRP、nCD4指数、PCT均具有相关性(P<0.05)。ROC曲线结果显示SAA、nCD4指数及两者联合诊断白血病合并细菌感染的AUC分别为0.724、0.745和0.867。结论:SAA、nCD4在白血病合并细菌感染患者中呈现高表达状况,与细菌感染显著相关,两者联合对白血病合并细菌感染具有较高的诊断价值。
【关键词】 血清淀粉样蛋白A 中性粒细胞CD4 白血病 细菌感染 诊断价值
Analysis of the Diagnostic Value of Serum Amyloid A and nCD4 for Leukemia Combined with Bacterial Infection/LI Lu. //Medical Innovation of China, 2021, 18(13): 0-067
[Abstract] Objective: To analysis the diagnostic values of serum amyloid A (SAA) and neutrophil CD4 (nCD4) for leukemia combined with bacterial infection. Method: A total of 47 patients with leukemia complicated with bacterial infection (infected group) and 47 leukemia patients without complicated with bacterial infection (control group) diagnosed and treated in our hospital from July 2018 to July 2020 were selected as the research subjects. SAA, C-reactive protein (CRP), procalcitonin (PCT) and nCD4 index in the two groups were detected. The correlation between each index and leukemia complicated bacterial infection was analyzed; the diagnostic value of SAA, NCD4 index and their combination in leukemia complicated bacterial infection was analyzed. Result: The SAA, CRP and PCT of the infection group were higher than those of the control group (P<0.05). The nCD4 index of the infection group was (176.32±2.58), which was higher than (51.58±3.19) of the control group (P<0.05). Leukemia complicated bacterial infection was correlated with SAA, CRP, nCD4 index and PCT (P<0.05). The ROC curve showed that the AUC of SAA, nCD4 index and the combined diagnosis of leukemia complicated with bacterial infection were 0.724, 0.745 and 0.867, respectively. Conclusion: SAA and nCD4 are highly expressed in patients with leukemia combined by bacterial infection, and are significantly related to bacterial infection. The combination of SAA and nCD4 has high diagnostic value for leukemia complicated with bacterial infection.
[Key words] Sercum amyloid A Neutrophil CD4 Leukemia Bacterial infection Diagnostic value
First-authors address: Liaoning Health Industry Group Iron Coal General Hospital, Diaobingshan 112700, China
doi:10.3969/j.issn.1674-4985.2021.13.016
急性白血病(acute leukemia,AL)属于血液系统的恶性肿瘤,多发病于小儿,主要包含急性髓系白血病(acute myeloid leukemia,AML)与急性淋巴细胞白血病(acute lymphoblastie leukemia,ALL)等类型[1]。该病在病理上主要表现为正常造血受抑制,白血病细胞在体内无控性增生和聚积,并可转移浸润中枢神经、肝、脾、淋巴结等其他器官和系统,严重影响患者的身心健康,且具有比较高的死亡率[2]。感染是急性白血病患者死亡的主要原因之一,尤以肺部感染最为多见[3]。主要在于白血病细胞无法像正常细胞一样分泌细胞免疫因子,可减弱机体抵御外界病原体的能力,从而使患者容易发生肺部感染。当前诊断肺部感染的实验室检测手段主要为白细胞计数、C反应蛋白(C-reactive protein,CRP)、降钙素原(procalcitonin,PCT)等,虽然灵敏度较好,但是诊断特异度有待提高[4-5]。血清淀粉样蛋白A(serum amyloid A,SAA)是机体受到内外在因素感染时,在短时间内明显升高,是目前临床常用的炎性检测指标[6-7]。中性粒细胞CD4(neutrophil CD4,nCD4)是当前临床上应用较多的一种诊断细菌感染的检测指标,灵敏度和特异度均较高[8]。……